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Finding the Fourth Proportional to 119,019.40, 178,403.10 and 44,091.40

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Solution

The fourth proportional to 119,019.40, 178,403.10 and 44,091.40 is: 66,090.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,019.40 : 178,403.10 = 44,091.40 : x
  2. Step 2: Convert to fraction form
    119,019.40/178,403.10 = 44,091.40/x
  3. Step 3: Cross multiply
    119,019.40x = 178,403.10 × 44,091.40
  4. Step 4: Simplify right side
    119,019.40x = 7,866,042,443.34
  5. Step 5: Solve for x
    x = 7,866,042,443.34/119,019.40
  6. Step 6: Final answer
    x = 66,090.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.